Abstract
Androgen receptor (AR) is a ligand-dependent transcription factor reportedly involved in regulation of wide ranging target genes. Rapidly emerging experimental evidence has provided detailed information related to 3D crystal structures of the ligand binding domain (LBD) and DNA binding domain (DBD) of AR.
Targeting of AR induced signaling cascade is assumed to be effective for treating castration-resistant prostate cancer (CRPC), which possesses resistance to the general anti-androgen therapy. The aggressiveness of cancer cells is induced by the interplay of multiple signal pathways, transcription factors and epigenetic machinery. To investigate how AR modulates transcriptional networks in prostate cancer cells, global analyses determining AR binding sites and androgen-regulated transcripts including coding and non-coding genes have been performed. In addition, diverse regulations of epigenetics such as histone modification and DNA methylation were found to be linked with the activation and repression of enhancers and promoters with AR recruitments. These regulatory mechanisms are interconnected strongly and regulate the gene expression in prostate cancer cells. In recent studies, many androgen-regulated genes have been shown to have important roles in the development of prostate cancer and clinical relevance as new biomarkers and therapy targets. In this chapter, we highlight those epigenetic mechanisms for AR activation by various factors, especially long non-coding RNA (lncRNA) and microRNA (miRNA). We also describe the molecular mechanism through which AR downstream signals induce tumor growth and inhibit apoptosis for developing CRPC.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Balk SP, Knudsen KE (2008) AR, the cell cycle, and prostate cancer. Nucl Recept Signal 6:e001
Debes JD, Tindall DJ (2004) Mechanism of androgen-refractory prostate cancer. N Engl J Med 351:1488–1490
Heemers HV, Tindall DJ (2007) Androgen receptor (AR) coregulators: a diversity of functions converging on and regulating the AR transcriptional complex. Endocr Rev 28:778–808
Jenster G et al (1991) Domains of the human androgen receptor involved in steroid binding, transcriptional activation, and subcellular localization. Mol Endocrinol 5:1396–1404
Jenster G et al (1995) Identification of two transcription activation units in the N-terminal domain of the human androgen receptor. J Biol Chem 270:7341–7346
Callewaert L et al (2006) Interplay between two hormone-independent activation domains in the androgen receptor. Cancer Res 66:543–553
Chamberlain NL et al (1996) Delineation of two distinct type 1 activation functions in the androgen receptor amino-terminal domain. J Biol Chem 271:26772–26778
Dehm SM et al (2007) Selective role of an NH2-terminal WxxLF motif for aberrant androgen receptor activation in androgen depletion-independent prostate cancer cells. Cancer Res 67:10067–10077
Schmidt LJ, Tindall DJ (2011) Steroid 5 alpha-reductase inhibitors targeting BPH and prostate cancer. J Steroid Biochem Mol Biol 125:32–38
Heery DM et al (1997) A signature motif in transcriptional co-activatorsmediates binding to nuclear receptors. Nature 387:733–736
Buchanan G et al (2001) Collocation of androgen receptor gene mutations in prostate cancer. Clin Cancer Res 7:1273–1281
Taplin ME et al (1995) Mutation of the androgen-receptor gene in metastatic androgen-independent prostate cancer. N Engl J Med 332:1393–1398
Taplin ME et al (2003) Androgen receptor mutations in androgen-independent prostate cancer: cancer and Leukemia Group B Study 9663. J Clin Oncol 21:2673–2678
Takayama K et al (2013) Androgen-responsive long noncoding RNA CTBP1-AS promotes prostate cancer. EMBO J 32:1665–1680
Shang Y, Myers M, Brown M (2002) Formation of the androgen receptor transcription complex. Mol Cell 9:601–610
Chen CD et al (2004) Molecular determinants of resistance to antiandrogen therapy. Nat Med 10:33–39
Locke JA et al (2008) Androgen levels increase by intratumoral de novo steroidogenesis during progression of castration-resistant prostate cancer. Cancer Res 68:6407–6415
Sun S et al (2010) Castration resistance in human prostate cancer is conferred by a frequently occurring androgen receptor splice variant. J Clin Invest 120:2715–2730
Waltering KK et al (2009) Increased expression of androgen receptor sensitizes prostate cancer cells to low levels of androgens. Cancer Res 69:8141–8149
Antonarakis ES et al (2014) AR-V7 and resistance to enzalutamide and abiraterone in prostate cancer. N Engl J Med 371:1028–1038
Antonarakis ES et al (2016) Androgen receptor variant-driven prostate cancer: clinical implications and therapeutic targeting. Prostate Cancer Prostatic Dis 19:231–241
Takayama K, Inoue S (2013) Transcriptional network of androgen receptor in prostate cancer progression. Int J Urol 20(8):756–768
Takayama K et al (2007) Identification of novel androgen response genes in prostate cancer cells by coupling chromatin immunoprecipitation and genomic microarray analysis. Oncogene 26:4453–4463
Takayama K et al (2009) Amyloid precursor protein is a primary androgen target gene that promotes prostate cancer growth. Cancer Res 69:137–142
Wang Q et al (2009) Androgen receptor regulates a distinct transcription program in androgen-independent prostate cancer. Cell 138:245–256
Yu J et al (2010) An integrated network of androgen receptor, polycomb, and TMPRSS2-ERG gene fusions in prostate cancer progression. Cancer Cell 17:443–454
Urbanucci A et al (2012) Overexpression of androgen receptor enhances the binding of the receptor to the chromatin in prostate cancer. Oncogene 31:2153–2163
Tan PY et al (2012) Integration of regulatory networks by NKX3-1 promotes androgen-dependent prostate cancer survival. Mol Cell Biol 32:399–414
He B et al (2014) GATA2 facilitates steroid receptor coactivator recruitment to the androgen receptor complex. Proc Natl Acad Sci U S A 111(51):18261–18266
Obinata D et al (2016) Targeting Oct1 genomic function inhibits androgen receptor signaling and castration-resistant prostate cancer growth. Oncogene. 35(49):6350–6358
Takayama K et al (2015a) RUNX1, an androgen- and EZH2-regulated gene, has differential roles in AR-dependent and -independent prostate cancer. Oncotarget 6:2263–2276
Takayama K et al (2015b) TET2 repression by androgen hormone regulates global hydroxymethylation status and prostate cancer progression. Nat Commun 6:8219
Shiraki T et al (2003) Cap analysis gene expression for high-throughput analysis of transcriptional starting point and identification of promoter usage. Proc Natl Acad Sci U S A 100:15776–15781
Takayama K et al (2011) Integration of cap analysis of gene expression and chromatin immunoprecipitation analysis on array reveals genome-wide androgen receptor signaling in prostate cancer cells. Oncogene 30(5):619–630
Gutschner T, Diederichs S (2012) The hallmarks of cancer: a long non-coding RNA point of view. RNA Biol 9:703–719
Djebali S, Davis CA, Merkel A et al (2012) Landscape of transcription in human cells. Nature 489:101–108
Mercer TR, Mattick JS et al (2013) Structure and function of long noncoding RNAs in epigenetic regulation. Nat Struct Mol Biol 20:300–307
Misawa A et al (2016) Androgen-induced lncRNA SOCS2-AS1 promotes cell growth and inhibits apoptosis in prostate cancer cells. J Biol Chem 291(34):17861–17880
Feinberg AP (2007) Phenotypic plasticity and the epigenetics of human disease. Nature 447:433–440
Gius D et al (2005) The epigenome as a molecular marker and target. Cancer 104:1789–1793
Struhl K, Segal E (2013) Determinants of nucleosome positioning. Nat Struct Mol Biol 20:267–273
Kimberly PK, Vezina CM (2015) DNA methylation as a dynamic regulator or development and disease process: spotlight on the prostate. Epigenomics 7:413–425
Yu M et al (2012) Base-resolution analysis of 5-hydroxymethylcytosine in the mammalian genome. Cell 149:1368–1380
Stroud H et al (2011) 5-Hydroxymethylcytosine is associated with enhancers and gene bodies in human embryonic stem cells. Genome Biol 12:R54
Bertoli G et al (2016) MicroRNAs as biomarkers for diagnosis, prognosis and theranostics in prostate cancer. Int J Mol Sci 17:421
Takayama K, Inoue S (2016) The emerging role of noncoding RNA in prostate cancer progression and its implication on diagnosis and treatment. Brief Funct Genomics 15:257–265
Xiao J et al (2012) miR-141 modulates androgen receptor transcriptional activity in human prostate cancer cells through targeting the small heterodimer partner protein. Prostate 72(14):1514–1522
Murata T et al (2010) miR-148a is an androgen-responsive microRNA that promotes LNCaP prostate cell growth by repressing its target CAND1 expression. Prostate Cancer Prostatic Dis 13:356–361
Shi XB et al (2007) An androgen-regulated miRNA suppresses Bak1 expression and induces androgen-independent growth of prostate cancer cells. Proc Natl Acad Sci U S A 104:19983–19988
Sun D et al (2011) miR-99 family of microRNAs suppresses the expression of prostate-specific antigen and prostate cancer cell proliferation. Cancer Res 71(4):1313–1324
Li T et al (2009) MicroRNA-21 directly targets MARCKS and promotes apoptosis resistance and invasion in prostate cancer cells. Biochem Biophys Res Commun 383:280–285
Liu LZ et al (2011) MiR-21 induced angiogenesis through AKT and ERK activation and HIF-1α expression. PLoS One 6:e19139
Lu Z et al (2008) MicroRNA-21 promotes cell transformation by targeting the programmed cell death 4 gene. Oncogene 27(31):4373–4379
Sun T et al (2014) MiR-221 promotes the development of androgen independence in prostate cancer cells via downregulation of HECTD2 and RAB1A. Oncogene 33(21):2790–2800
Jalava SE et al (2012) Androgen-regulated miR-32 targets BTG2 and is overexpressed in castration-resistant prostate cancer. Oncogene 31:4460–4471
Coppola V et al (2013) BTG2 loss and miR-21 upregulation contribute to prostate cell transformation by inducing luminal markers expression and epithelial-mesenchymal transition. Oncogene 32:1843–1853
Ribas J et al (2009) miR-21: an androgen receptor-regulated microRNA that promotes hormone-dependent and hormone-independent prostate cancer growth. Cancer Res 69:7165–7169
Ambs S et al (2008) Genomic profiling of microRNA and messenger RNA reveals deregulated microRNA expression in prostate cancer. Cancer Res 68:6162–6170
Jiang H et al (2014) Diverse roles of miR-29 in cancer. Oncol Rep 31(4):1509–1516
Wang Y et al (2013) The role of miRNA-29 family in cancer. Eur J Cell Biol 92(3):123–128
Gebeshuber CA et al (2009) miR-29a suppresses tristetraprolin, which is a regulator of epithelial polarity and metastasis. EMBO Rep 10(4):400–405
Wang C et al (2011a) miR-29b regulates migration of human breast cancer cells. Mol Cell Biochem 352(1–2):197–207
Wang D et al (2011b) Reprogramming transcription by distinct classes of enhancers functionally defined by eRNA. Nature 474:390–394
Kong G et al (2011) Upregulated microRNA-29a by hepatitis B virus X protein enhances hepatoma cell migration by targeting PTEN in cell culture model. PLoS One 6(5):e19518
Langsch S et al (2016) miR-29b mediates NF-κB signaling in KRAS-induced non-small cell lung cancers. Cancer Res. 76(14):4160–4169
Nickerson ML et al (2013) Somatic alterations contributing to metastasis of a castration-resistant prostate cancer. Hum Mutat 34(9):1231–1241
Koboldt DC et al (2016) Rare variation in TET2 is associated with clinically relevant prostate carcinoma in African-Americans. Cancer Epidemiol Biomarkers Prev 25(11):1456–1463
Chi P et al (2010) Covalent histone modifications-miswritten, misinterpreted and mis-erased in human cancers. Nat Rev Cancer 10:457–469
Dasgupta S et al (2014) Nuclear receptor coactivators: master regulators of human health and disease. Annu Rev Med 65:279–292
Eissenberg JC, Shilatifard A (2010) Histone H3 lysine 4 (H3K4) methylation in development and differentiation. Dev Biol 339:240–249
Metzger E et al (2008) Phosphorylation of histone H3 at threonine 11 establishes a novel chromatin mark for transcriptional regulation. Nat Cell Biol 10:53–60
Metzger E et al (2010) Phosphorylation of histone H3T6 by PKCbeta(I) controls demethylation at histone H3K4. Nature 464(7289):792–796
Kim JY et al (2014) A role for WDR5 in integrating threonine 11 phosphorylation to lysine 4 methylation on histone H3 during androgen signaling and in prostate cancer. Mol Cell 54(4):613–625
Malik R et al (2015) Targeting the MLL complex in castration-resistant prostate cancer. Nat Med 21(4):344–352
Cai C et al (2011) Androgen receptor gene expression in prostate cancer is directly suppressed by the androgen receptor through recruitment of lysine-specific demethylase 1. Cancer Cell 20:457–471
Derrien T et al (2012) The GENCODE v7 catalog of human long noncoding RNAs: analysis of their gene structure, evolution, and expression. Genome Res 22:1775–1789
Kan Z et al (2010) Diverse somatic mutation patterns and pathway alterations in human cancers. Nature 466:869–873
Moran VA et al (2012) Emerging functional and mechanistic paradigms of mammalian long non-coding RNAs. Nucleic Acids Res 40:6391–6400
Du Z et al (2013) Integrative genomic analyses reveal clinically relevant long noncoding RNAs in human cancer. Nat Struct Mol Biol 20:908–913
Hsieh CL et al (2014) Enhancer RNAs participate in androgen receptor-driven looping that selectively enhances gene activation. Proc Natl Acad Sci U S A 111(20):7319–7324
Puc J et al (2015) Ligand-dependent enhancer activation regulated by topoisomerase-I activity. Cell 160(3):367–380
Srikantan V et al (2000) PCGEM1, a prostate-specific gene, is overexpressed in prostate cancer. Proc Natl Acad Sci U S A 97:12216–12221
Petrovics G et al (2004) Elevated expression of PCGEM1, a prostate-specific gene with cell growth-promoting function, is associated with high-risk prostate cancer patients. Oncogene 23:605–611
Yang L et al (2013) lncRNA-dependent mechanisms of androgen-receptor regulated gene activation programs. Nature 500:598–602
Prensner JR et al (2014) The IncRNAs PCGEM1 and PRNCR1 are not implicated in castration resistant prostate cancer. Oncotarget 5(6):1434–1438
Lanz RB et al (1999) steroid receptor coactivator, SRA, functions as an RNA and is present in an SRC-1 complex. Cell 97(1):17–27
Lanz RB et al (2002) Distinct RNA motifs are important for coactivation of steroid hormone receptors by steroid receptor RNA activator (SRA). Proc Natl Acad Sci U S A 99(25):16081–16086. Epub 2002 Nov 20
Gupta RA et al (2010) Long non-coding RNA HOTAIR reprograms chromatin state to promote cancer metastasis. Nature 464:1071–1076
Zhang A et al (2015) LncRNA HOTAIR enhances the androgen-receptor-mediated transcriptional program and drives castration-resistant prostate cancer. Cell Rep 13(1):209–221
Bhan A et al (2013) Antisense transcript long noncoding RNA (lncRNA) HOTAIR is transcriptionally induced by estradiol. J Mol Biol 425(19):3707–3722
Xue X et al (2016) LncRNA HOTAIR enhances ER signaling and confers tamoxifen resistance in breast cancer. Oncogene 35:2746–2755
Farooqi AA, Bhatti S, Ismail M (2012) TRAIL and vitamins: opting for keys to castle of cancer proteome instead of open sesame. Cancer Cell Int 12:22
Katayama S et al (2005) Antisense transcription in the mammalian transcriptome. Science 309:1564–1566
Ogawa Y et al (2008) Intersect, ion of the RNA interference and X-inactivation pathways. Science 320:1336–1341
Rosok O, Sioud M (2004) Systematic identification of sense-antisense transcripts in mammalian cells. Nat Biotechnol 22:104–108
Yu W et al (2008) Epigenetic silencing of tumour suppressor gene p15 by its antisense RNA. Nature 451:202–206
Hessels D, Schalken JA (2009) The use of PCA3 in the diagnosis of prostate cancer. Nat Rev Urol 6:255–261
Bussemakers MJ et al (1999) DD3: a new prostate-specific gene, highly overexpressed in prostate cancer. Cancer Res 59:5975–5979
Salameh A et al (2015) PRUNE2 is a human prostate cancer suppressor regulated by the intronic long noncoding RNA PCA3. Proc Natl Acad Sci U S A 112(27):8403–8408
Yap KL et al (2010) Molecular interplay of the noncoding RNA ANRIL and methylated histone H3 lysine 27 by polycomb CBX7 in transcriptional silencing of INK4a. Mol Cell 38:662–674
Tsai MC et al (2010) Long noncoding RNA as modular scaffold of histone modification complexes. Science 329(5992):689–693
Shi Y et al (2003) Coordinated histone modifications mediated by a CtBP co-repressor complex. Nature 422:735–738
Shav-Tal Y, Zipori D (2002) PSF and p54(nrb)/NonO--multi-functional nuclear proteins. FEBS Lett 531:109–114
Song X et al (2004) Binding of mouse VL30 retrotransposon RNA to PSF protein induces genes repressed by PSF: effects on steroidogenesis and oncogenesis. Proc Natl Acad Sci U S A 101:621–626
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing AG
About this chapter
Cite this chapter
Takayama, Ki., Inoue, S. (2017). Investigation of Androgen Receptor Signaling Pathways with Epigenetic Machinery in Prostate Cancer. In: Farooqi, A., Ismail, M. (eds) Molecular Oncology: Underlying Mechanisms and Translational Advancements. Springer, Cham. https://doi.org/10.1007/978-3-319-53082-6_10
Download citation
DOI: https://doi.org/10.1007/978-3-319-53082-6_10
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-53081-9
Online ISBN: 978-3-319-53082-6
eBook Packages: Biomedical and Life SciencesBiomedical and Life Sciences (R0)